Separable fastener slider



Aug. 7, 1934. N .1 Poux` 1,969,672'

- SEPARABLE FASTENER 51.115511 Filed Jan. f7, 1927 INVENTOR 7 NQEL- J. Poux.

MLM ATTORNEY Patented Aug. 7, 1934 TES llJNl'rl-:D STA PATENT? 0F F ICE less Fastener Company, Meadville, poration of Pennsylvania Pa., a cor- Application January 7, 1927, Serial No. 159,569

5 Claims.

This invention relates to a separable fastener slider and has for its object to provide a locking device therefor which is simple in construction, certain in action and adapted to lock the slider in any position of its travel. y

Previous suggestions for locking a slider have included cumbersome pins projecting through both wings and unduly thickening the slider, a slidable plate presenting too many parts and too complicated a construction to be made cheaply, or some locking device projecting beyond the end of a slider where the locking members are in engagement, making the device of inconvenient length.

According to lthis invention, a slider pull is provided adjacent its pivot with one or more fingers or lugs shaped to extend through a recess l in the slider Wing for direct engagement between locking members on one stringer or the lug may indirectly cooperate with said members through the aid of some other part of the slider. Preferably these lugs are spaced longitudinally and laterally to be engaged between locking members on each Stringer.

Referring to the drawing, Fig. lis a plan view of the fastener provided with a slider in unlocked position,

Fig. 2 is a side view of the device of Fig. 1,

Fig. 3 is a plan view of the fastener having its slider inverted with respect to that of Fig. 1 and in unlocked position,

Fig. 4 is a perspective of the slider shown in Fig. 1,

Fig. `5 is a modiedform of the slider shown in Fig. 4,

- Fig. e is a 1ongicudina1 section through the' slider of Fig. 3,

Fig. 7 is a modifiedslider of the general type shown by Fig. 4.

In thel accompanying drawing, Figs. 1 and 2 illustrate a slider 3 controlling a customary form of fastener comprising locking members 1 secured to the stringers 8 and being controlled or engaged and disengaged by the slider, the locking members being in staggered relation on opposite stringers. Actuation of lthe slider 3 is acbers on each Stringer, fingers 4 being spaced laterally and longitudinally so that each may engage between locking members on a stringer. If the locking members are not in exact position for the fingers to enter the space between them,A

this will take place as soon as there is relative movement between the slider and locking members. With the slider in an upright position, locking is automatic. When in horizontal position, locking is automatic if care is taken to see that the pull falls to the proper side to insure locking. A

In Fig. 3 is shown a fastener similar to that of Figs. 1 and 2 exceptthat the fastener and slider are inverted, and in order to have the slider automatically lock, the fingers are on a d iierent side of the pull from Figs. 1 and 2.

In Fig.4 as in the preceding iigures the slider may be of any well known type but is preferably of the type described and claimed in the Sundback Patent #1,6619144, for Separable fastener slider, dated February 28, 1928, with the changes illustrated.

'Ihe pull lug 6 is preferably located in the longitudinal central plane of the slider and may be formed either integrally with the wings as described in the aforesaid application or may be made separate and then secured to the wing in some manner as by welding or by means of a rivet passing through the wings or may be part of such rivet or other securing means.

In Fig. 5 is shown a slider of the same type described in Fig. 4 except that the locking fingers 4 are located between a pair of pull attaching lugs 6 instead of on either side of a single lug. In this case, the lugs are preferably made integral and formed by bending up the wing material from the sides of the recess 5. The pull 2 is attached to the lug or lugs 6 by `spreading the lower end portion of the pulll sufflcient to bring it into position and then compressing this lower end so as to retain the same within the lug perforation or perfor-ations.

In Fig. 7 is shown a slider of the general type illustrated in Fig. 4 except that the pull attaching lug 6 is elongated and provided with a longitudinal recess so that the pull may shift longitudinally of the slider in order to have the controlling force applied adjacent one end of the slider or the other depending upon the direction in which the slider is moved. If desired, the pull may be similarly made shiftable longitudinally of the slider in its lug or rivet of the other figures.

This invention is adapted for use in the usual tear slider if the pull is kept fromv locking position. Also the sliders of this invention are adapted for actuation in either direction. Preferably the locking is automatic on release of the pull.

In each case it will be noted that the locking pin is offset from the longitudinal central plane of the fastener so that it will engage in the spaces directly between the clamping portions of the locking members 1. It will also be noted that the locking pins are arranged in the same transverse line as the pivotal connecting means for the pull tab whereby no special care is required to guide the pin into proper position to register with the fastener elements. 1

yIn the construction shown in Fig. 4. it will be noted that the locking pins 4 are disposed laterally from the lug 6 on each side, and disposed vlaterally from is intendedto distinguish from a construction where the locking pin in locking position is forwardly or rearwardly of the lug. Although two locking pins are not necessary, they have the advantage that the locking stress on opposite sides of the lug is balanced.

I claim:

i. The combination with a pair of flexible stringere having looking members thereon, a slider movable along said stringers to control said locking members, said slider comprising spaced wings forming diverging channels, one of said wings being provided with a recess, and a locking finger movable longitudinally on said slider and projecting through said recess for co-operation with said locking members.

2. The combination with a pair of flexible stringers having. locking members thereon, a slider movable along said strlnger to control said locking members, said slider comprising spaced wings forming diverging channels, one of said wings being provided with a recess, a locking nger projecting through said recess and longitudinally movable on said slider to engage between adjacent locking members on the same body member having pmuel wim esamina s channel through which the fastener locking members pass, a projection on one of the wings, a

pull having means for pivotally connecting it to said projection, said wing having the projection also having an opening disposed laterally from said projectiomand a locking pin on said pull extending from a point on the pull in line with the pivotal axis and at substantially right angles to said pull, said pin projecting'through said opening to engage fastener locking members when said pull is swung to one of its limiting positions. y

4. A slider for slide fasteners comprising a body member having parallel wings embracing a channel through which the fastener locking memberspass, a lug on one wing in the longitudinal central plane of the slider, a pull pivoted about a fixed transverse axis lto said lug, said wing having the lug also having an opening disposed laterally from said lug and a locking pin on said pull at one side oi the lug in the same vertical plane as said opening and extending from a point on the pull in line with the pivotal axis so as to project through said opening to engage fastener locking members when said pull is swung to one of its limiting positions.

5. In combination, a slide fastener having two rows of locking members, a slider movable along said members to engage and disengage them, said slider having wings embracing a channel through which the fastener locking members pass, a pull pivoted to one wing, a locking pin on the pull substantially in line with the pivotal axis, the slider wing to which the pull is pivoted having an opening offset from the longitudinal center line of the slider suiiiciently to be directly over the clamping portions of the fastener members, said pin being in the same vertical plane as said opening and being of such length that it will extend between the clamping portions of a pair of fastener members to lock the slider.

NOEL J. POUX. 

